NSA monitored calls of 35 world leaders after US official handed over contacts

The NSA memo suggests that such surveillance was not isolated as the agency routinely monitors world leaders. / Photo credit: The Guardian.co.uk.

The National Security Agency monitored the phone conversations of 35 world leaders after being given the numbers by an official in another US government department, according to a classified document provided by whistleblower Edward Snowden.

The confidential memo reveals that the NSA encourages senior officials in its “customer” departments, such the White House, State and the Pentagon, to share their “Rolodexes” so the agency can add the phone numbers of leading foreign politicians to their surveillance systems.

The document notes that one unnamed US official handed over 200 numbers, including those of the 35 world leaders, none of whom is named. These were immediately “tasked” for monitoring by the NSA.